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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>




<style>
    div {
        border: 1px solid pink;
        padding: 25px 50px 75px;
        background-color: lightpink;
    }
</style>


<body>
    <h1>简写的内边距属性 - 3 个值</h1>
    <div>这个 div 元素的上内边距是 25px
        左右内边距是 50px，下内边距是 75px。</div>
</body>

</html>